1.50 mol of an ideal gas undergo a reversible isothermal expansion from 1.80 dm3 to 2.80 dm3. What is S, Ssurr, and Stot ? (b)If the expansion in (a) is free, What is S, Ssurr, and Stot ? Q2. (5 marks) Calculate S when 0.0385 mol of an ideal gas (Cv,m = 1.5R) at 20.0oC and 1.30 atm expand to 0.900 atm and, at the same time, cool to ‒21.5 oC.

Q: For nitrogen gas the values of Cv and Cp at 25°C are 20.8 J K−1 mol−1 and 29.1 J K−1 mol−1,…

A: Hello. Since your question has multiple questions, we will solve the first question for you. If you…

Q: A sample of solid biphenyl weighing 0.5260 g was ignited in a bomb calorimeter initially at 25°C,…

A: The Cp of Solid Biphenyl is 198.39 J/mol/K.Molar mass of Biphenyl = 154 g/mol.Given weight =…

Q: Silylene (SiH2) is a key intermediate in the thermal decomposition of silicone hydrides such as…

A: enthalpy is a thermodynamic property which is an extensive in nature here we are required to the…

Q: The standard enthalpy change of combustion [to CO2(g) and H20(€)] at 25°C of the organic liquid…

A: The combustion reaction can be given as: The given information is: According to the standard…

Q: Automobiles and trucks pollute the air with NO. At 2000.0°C, Kc for the reaction…

A: The standard enthalpy of a chemical reaction is defined as the amount of heat that is absorbed or…

Q: * The molar heat capacities of substances varies with temperature. The general function for…

A: The change in enthalpy at 1500K is 46.640675 KJ mol-1 K-1.

Q: The molar heat capacities of substances varies with temperature. The general function for…

A:

Q: Q) When 2mol CO2 is heated at a constant pressure of 1.25 atm, its Temperature increases from 250 K…

A: Number of moles of CO2 = 2 Constant pressure = 1.25 atm  T1 = 250K  T2 = 277 K  Cp = 37.11Jk-1mol-1…

Q: 2. Find ASy, 4Ssurm q, w, and AU for the reversible isothermal expansion of 3.000 mol of argon sys…

A: Calculate the work done (w) for the isothermal reversible expansion: 1 J = 0.001 kJ

Q: The value of AG° at 241.0 °C for the formation of phosphorous trichloride from its constituent…

A: The Gibbs free energy, enthalpy, and entropy are the thermodynamic properties. The Gibbs free energy…

Q: When 3.0 mol 0 2(g) is heated at a constant pressureof 3.25 atm. its temperature increases from 260…

A: The molar heat capacity indicates the amount of heat which is required to raise the temperature of 1…

Q: An ideal gas is allowed to expand isothermally from 2.00 liters at 5.00 atm to 5.00 liters at 2.00…

A:

Q: he n-butane is converted into isobutane in an isomerization reactor, which operates isothermally at…

A: Isomerization, the chemical process by which a compound is transformed into any of its isomeric…

Q: 4. (a) Predict the sign of heat (q) and work (w) for the following exothermic reaction conducted at…

A: Given: 2Na (s) + Cl2(g) → 2 NaCl(s) Constant pressure = 1.0 atm Constant temperature = 298 K The…

Q: Q) When 3.0 mol O2 is heated at a constant pressure of 3.25 atm, its temperature increases from 260…

A:

Q: What is the internal energy (in J) of 5.50 mol of an ideal monatomic gas at 201°C? J

A: Given: Monoatomic gas number of moles, n = 5.50 moles Temperature, T = 201°C = 474.15K

Q: Q.30. Determine, at 298 K, A,„H°, the standard enthalpy of the reaction (1) between dinitrogen…

A: Reaction 1: N2O4 (g) + 2 N2H4 (l) →  3 N2 (g) + 4 H2O (g) Therefore, in order to form this equation…

Q: Antoine Lavoisier used the first calorimeter to measure the heat a guinea pig produced during…

A: Internal energy of the molecule will be the amount of energy already present within the molecule. It…

Q: As shown in the figure below, for a given change in volume expansion, the higher the temperature of…

A: for a given graph. volume expansion. higher the temperature of tha gas larger the exported work.…

Q: The heat of combustion of glucose, C6H12O6, is -673Kcal at 298k. Calculate the standard enthalpy of…

A:

Q: Elemental tin can be dissolved in acid solution as shown by the following equation: Sn + 2H (ag)→…

A: 1- First calculate the moles of hydrogen gas :  moles of Sn = [ mass / Molar mass of Sn ] moles of…

Q: For the transfer of heat from a cold object A at -24oC to a hot object B at +25oC, is the value of…

A: Generally, heat continues to transfer until both systems reach same temperature.

Q: * The molar heat capacities of substances varies with temperature. The general function for…

A:

Q: elationship between heat transfer and change in temperature is given by Q = , where c is specific…

A: Applying concept of open system.

Q: Calculate ΔH∘ΔH∘ in kilojoules for the reaction of acetylene (C2H2)(ΔH∘f=227.4kJ/mol) with O2O2 to…

A:

Q: The complete combustion of 1.200 g of cinnamaldehyde (C9H8O), in a bomb calorimeter (Cbc = 3.640…

A:

Q: Ten grams of N2 at 17°C are compressed adiabatically and reversibly from 8 to 5 Liters. Calculate…

A: The value of Cpis 7/2R Temperature at initial T1 is 17∘C(290 K) The gas constant value is 8.317…

Q: Given the heat capacities at constant pressure, Cp, in J/(K mole) for the substances A, B, and C as…

A:

Q: The heat of combustion of 1,4-butanediol (C4H10O2) at 298.15 K, determined in a bomb calorimeter is…

A: Given  Heat of combustion 1,4-butadiene = 43.5 KJ/g

Q: Automobiles and trucks pollute the air with NO. At 2000.0°C, Kc for the…

A: Enthalpy of reaction (ΔH) = 180.6 kJ Initial temperature (T1) = 2000.0 °C Final temperature (T2) =…

Q: Q3) When 3.0 mol Oz(g) is heated at a constant pressure of 3.25atm, its temperature increases from…

A: 3.0 mole of O2 is heated at constant pressure of 3.25 atm. Since the pressure is constant, thus it…

Q: When a sample of 1.0 mol of a monatomic perfect gas with Cv,m= 12.47 J/mol K and initially at 25°C,…

A: Given data for an adiabatic process: Amount of sample in moles = 1mol Cv,m for monoatomic gas      =…

Q: Find dSsys, dSsurr, q, w, and dU for the reversible isothermal expansion of 3.000 mol of argon…

A: Calculate the work done (w) for the isothermal reversible expansion: 1 J = 0.001 kJ

Q: The standard molar enthalpy of formation of molecular oxygen at 298 K is zero. What is its value at…

A: According to the Kirchhoff\'s law, enthalpy at two different temperatures can be related as:

Q: 5. Calculate the work done by a piston with diameter d =0.1m which moves from x, =0.15 m to x, =…

A: work done on expansion of a gas

Q: 2.8 g of a solid was dissolved in 51.4 g of a basic solution in a calorimeter with a calorimeter…

A:

Q: Wile E. Coyote has just bought a fresh batch of ACME brand trinitrotoluene (TNT) to stop that pesky…

A: Introduction: Thermodynamically, work is defined as the transfer of energy from one system to…

Q: The constant pressure molar heat capacity, Cp, of nitrogen gas, N2, is 29.125 J K−1 mol−1 at 298 K.…

A: Given: Cp of N2, is 29.125 J K−1 mol−1 20 mol of nitrogen gas initial temperature = 298 - 273 =…

Q: A mole of an ideal, diatomic gas undergoes isothermal, reversible expansion from 1.0 dm^3 to 10.0…

A: Answer  A mole of an ideal, diatomic gas undergoes isothermal,…

Q: 2. When 4.0 mol O, is heated at a constant pressure of 1.0 atm, its temperature increases from 250 K…

A:

Q: The molar heat capacity at constant pressure for CO(g) is 6.97 cal mol-1 K-1. How much heat in cal…

A:

Q: A critical reaction in the production of energy to do work or drive chemical reactions in biological…

A:

Q: For the combustion of butane at 298 K,2 C4H10(g) + 13 O2(g) ----->8 CO2(g) + 10 H2O(g) , do…

A: The spontaneity of any reaction is determined by the value of Gibbs free energy. If the value of…

Q: Calculate the change internal energy (ΔE) for a system that is absorbing 1650.1 kJ of heat and is…

A:

Q: Q.29. Determine, at 298 K, AH, the standard enthalpy of the reaction (1) between dinitrogen…

A:

Q: ch of the following constants is/are needed to calculate the amor 70.5g of H20(s) at –35.0°C to…

A: The question is based on Hess law.   it  states that net enthalpy change for the reaction remains…

Q: 2. Calculate the work done by 2.00 mol of an ideal gas contained in a piston/cylinder assembly that…

A:

Q: (b) An ideal gas is expanded reversibly and isothermally. Decide which of q, w, AU, and AH are 0,…

A:

Q: Determine, at 298 K, Δr1H0, the standard enthalpy of the reaction (1) between dinitrogen tetraoxide…

A: